Model: SWT06ED – Walk-In Oven

Operating Temperature 

200°F (93°C) to 650°F (343°C)

Heating Medium

Electric, low watt density Incoloy® heaters provide years of trouble free service.  Standard heater bank assemblies are installed in high velocity ductwork to maximize heat transfer.

Airflow Pattern

Dual (Combination) Airflow: Hot air is supplied from both of the side walls and returned through a top plenum.

Input Voltage

Standard: 480/3/60. Please consult factory for additional options.

Control System

LEWCO’s standard control package includes a single set-point process temperature controller and redundant high-limit controller. Circulation fan(s) and exhaust fan(s) include air proving circuits that are electrically interlocked with the heating circuit. All controls are housed in a NEMA 12 enclosure employing a full voltage lockable disconnect switch. Controls are wired to NFPA 70 and 79 electrical standards. Other third party certifications available.

Optional:

Door Switch
Disables heat when door is opened on electrically heated ovens; holds burner at low fire on fuel-fired ovens.

Batch Timer
Infinitely adjustable up to 100 hrs., includes illuminated On/ Off switch to indicate timed operation and audible alarm when time has elapsed.

Ramp/ Soak Controller
Programmable ramp/ soak temperature controller with capability to store different recipes with multiple segments.

Chart Recorder
Single pen circular paper chart recorder for continuous monitoring of temperature data. Comes with (1) Type “J” thermocouple input.

PLC
Programmable Logic Controller for processes with numerous inputs and outputs; or requiring automation of material handling equipment. The PLC can also allow for Ethernet connectivity for remote system monitoring.

Touchscreen HMI
Human Machine Interface provides the operator easy access and control of different parts of the equipment. Allows real time monitoring and provides feedback of the process in a visual, easy to read format.

Composite Curing Controls:

Data Logger: Multiple input digital data logger continuously records temperature and other process data. Allows downloading of digital data files through USB or Ethernet connection. Data can also be viewed on a full color display or on a web server when connected to a network.

Thermocouple Jacks: Thermocouple jack panel for high-temperature Type “J” thermocouples, located inside the oven. Includes wiring to data logger if purchased.

Vacuum Ports: ½” NPT thru-wall vacuum ports, each with vacuum rated manual ball valve and indicating gauge. All ports are connected to a 1” NPT header.

Vacuum Pump: Includes motor starter circuit and connection to vacuum header pipe.

Model (NFPA Class B) Overall Dimensions Door Swing Radius Workspace Dimensions Workspace Volume (cubic ft.) Heater Bank
(kW)
Circulating Fan
(CFM)
Motor
(HP)
Air Changes per Minute Exhaust Fan Capacity (CFM) Exhaust Motor (HP) Solvents per Batch
(Gals.)
Ships Fully Assembled
“W “D “H “W “D “H
SWT06ED-48-48-60
79 61 123 24″ 48 48 60 80 36 1,700 1 21.25 N/A N/A 0 Yes
SWT06ED-48-48-72
81 61 135 24″ 48 48 72 96 45 2,000 1 1/2 20.83 N/A N/A 0 Yes
SWT06ED-48-48-96
83 61 159 24″ 48 48 96 128 54 2,500 2 19.53 N/A N/A 0 Yes
SWT06ED-60-60-60
95 73 123 30″ 60 60 60 125 45 2,500 2 20.00 N/A N/A 0 Yes
SWT06ED-60-60-72
95 73 136 30″ 60 60 72 150 54 3,000 2 20.00 N/A N/A 0 Yes
SWT06ED-60-60-96
97 73 163 30″ 60 60 96 200 63 4,000 3 20.00 N/A N/A 0 No
SWT06ED-72-72-72
109 85 139 36″ 72 72 72 216 63 4,000 3 18.52 N/A N/A 0 Yes
SWT06ED-72-72-96
113 85 169 36″ 72 72 96 288 72 5,500 3 19.09 N/A N/A 0 No
SWT06ED-72-120-96
125 133 169 36″ 72 120 96 480 99 9,000 7 1/2 18.75 N/A N/A 0 No
SWT06ED-84-84-84 129 97 157 42″ 84 84 84 343 81 7,000 5 20.41 N/A N/A 0 No
SWT06ED-84-96-84 133 109 157 42″ 84 96 84 392 90 8,000 5 20.41 N/A N/A 0 No
SWT06ED-84-120-84
137 133 162 42″ 84 120 84 490 99 10,000 7 1/2 20.41 N/A N/A 0 No
SWT06ED-84-120-96
141 133 176 42″ 84 120 96 560 108 12,000 7 1/2 21.43 N/A N/A 0 No
SWT06ED-96-96-96 149 109 174 48″ 96 96 96 512 108 10,000 7 1/2 19.53 N/A N/A 0 Yes
SWT06ED-96-120-96
153 133 176 48″ 96 120 96 640 126 12,000 7 1/2 18.75 N/A N/A 0 Yes
SWT06ED-96-144-96
161 157 182 48″ 96 144 96 768 144 16,000 10 20.83 N/A N/A 0 Yes
SWT06ED-96-168-96
167 181 182 48″ 96 168 96 896 162 18,000 15 20.09 N/A N/A 0 No
SWT06ED-96-192-96
169 205 184 48″ 96 192 96 1,024 171 20,000 15 19.53 N/A N/A 0 No
SWT06ED-96-240-96
173 253 151 48″ 96 240 96 1,280 207 24,000 15 18.75 N/A N/A 0 No
SWT06ED-96-240-120
183 253 177 48″ 96 240 120 1,600 234 30,000 20 19.75 N/A N/A 0 No
SWT06ED-96-288-96
183 301 153 48″ 96 288 96 1,536 234 30,000 20 19.53 N/A N/A 0 No
SWT06ED-96-288-120
159 301 225 48″ 96 288 120 1,910 288 40,000 20 20.83 N/A N/A 0 No
SWT06ED-120-120-96
185 133 182 60″ 120 120 96 800 144 16,000 10 20.00 N/A N/A 0 No
SWT06ED-120-120-120
193 133 208 60″ 120 120 120 1,000 162 20,000 15 18.00 N/A N/A 0 No
SWT06ED-120-144-96
191 157 182 60″ 120 144 96 960 162 18,000 15 18.75 N/A N/A 0 No
SWT06ED-120-144-120
197 157 175 60″ 120 144 120 1,200 189 24,000 15 20.00 N/A N/A 0 No
SWT06ED-120-168-96
193 181 151 60″ 120 168 96 1,120 180 22,000 15 19.64 N/A N/A 0 No
SWT06ED-120-168-120
203 181 175 60″ 120 168 120 1,400 207 26,000 15 18.57 N/A N/A 0 No
SWT06ED-120-192-96
197 205 151 60″ 120 192 96 1,280 198 24,000 15 18.75 N/A N/A 0 No
SWT06ED-120-192-120
207 205 177 60″ 120 192 120 1,600 225 30,000 20 18.75 N/A N/A 0 No
SWT06ED-120-240-96
207 253 153 60″ 120 240 96 1,600 234 30,000 20 18.75 N/A N/A 0 No
SWT06ED-120-240-120
183 253 225 60″ 120 240 120 2,000 261 40,000 20 20.00 N/A N/A 0 No
SWT06ED-120-288-96
183 301 201 60″ 120 288 96 1,920 288 40,000 20 20.83 N/A N/A 0 No
SWT06ED-120-288-120
193 301 230 60″ 120 288 120 2,400 297 50,000 20 20.83 N/A N/A 0 No
Model (NFPA Class A) Overall Dimensions Door Swing Radius Workspace Dimensions Workspace Volume (cubic ft.) Heater Bank
(kW)
Circulating Fan
(CFM)
Motor
(HP)
Air Changes per Minute Exhaust Fan Capacity (CFM) Exhaust Motor (HP) Solvents per Batch
(Gals.)
Ships Fully Assembled
“W “D “H “W “D “H
SWR06ED-48-48-60
82 107 124 24″ 48 48 60 80 45 1,700 1 21.25 62 1/4 0.04 Yes
SWR06ED-48-48-72
81 106 135 24″ 48 48 72 96 54 2,000 1 1/2 20.83 62 1/4 0.04 Yes
SWR06ED-48-48-96
83 106 159 24″ 48 48 96 128 63 2,500 2 19.53 62 1/4 0.04 No
SWR06ED-48-72-72
83 134 135 24″ 48 72 72 144 63 3,000 2 20.83 62 1/4 0.04 Yes
SWR06ED-48-72-96
85 140 159 24″ 48 72 96 192 72 4,000 3 20.83 62 1/4 0.04 No
SWR06ED-48-96-72 85 164 135 24″ 48 96 72 192 72 4,000 3 20.83 62 1/4 0.04 Yes
SWR06ED-48-96-96 89 168 159 24″ 48 96 96 256 81 5,000 3 19.53 62 1/4 0.04 No
SWR06ED-60-60-60
95 118 123 30″ 60 60 60 125 54 2,500 2 20.00 62 1/4 0.04 Yes
SWR06ED-60-60-72 95 122 135 30″ 60 60 72 150 63 3,000 2 20.00 62 1/4 0.04 Yes
SWR06ED-60-60-96 97 128 159 30″ 60 60 96 200 72 4,000 3 20.00 62 1/4 0.04 No
SWR06ED-60-72-72 97 134 135 30″ 60 72 72 180 63 3,500 3 19.44 62 1/4 0.04 Yes
SWR06ED-60-72-96 99 144 159 30″ 60 72 96 240 81 4,500 3 18.75 62 1/4 0.04 No
SWR06ED-60-96-96 103 174 159 30″ 60 96 96 320 108 6,000 3 18.75 100 1/4 0.07 No
SWR06ED-72-72-72
109 140 135 36″ 72 72 72 216 72 4,000 3 18.52 62 1/4 0.04 Yes
SWR06ED-72-72-96 113 150 159 36″ 72 72 96 288 81 5,500 3 19.09 62 1/4 0.04 No
SWR06ED-72-96-96 121 174 159 36″ 72 96 96 384 108 8,000 5 20.83 100 1/4 0.07 No
SWR06ED-72-120-96
125 198 159 36″ 72 120 96 480 135 9,000 7 1/2 18.75 100 1/4 0.07 No
SWR06ED-84-84-84 129 162 147 42″ 84 84 84 343 108 7,000 5 20.41 100 1/4 0.07 No
SWR06ED-84-96-84 133 174 147 42″ 84 96 84 392 108 8,000 5 20.41 100 1/4 0.07 No
SWR06ED-84-120-84
137 205 147 42″ 84 120 84 490 162 10,000 7 1/2 20.41 250 1/4 0.18 No
SWR06ED-84-120-96
141 210 159 42″ 84 120 96 560 162 12,000 7 1/2 21.43 250 1/4 0.18 No
SWR06ED-96-96-96 149 181 159 48″ 96 96 96 512 162 10,000 7 1/2 19.53 250 1/4 0.18 No
SWR06ED-96-120-96
153 210 159 48″ 96 120 96 640 171 12,000 7 1/2 18.75 250 1/4 0.18 No
SWR06ED-96-144-96
161 243 159 48″ 96 144 96 768 189 16,000 10 20.83 250 1/4 0.18 No
SWR06ED-96-168-96
167 267 159 48″ 96 168 96 896 207 18,000 15 20.08 250 1/4 0.18 No
SWR06ED-120-120-96
185 219 159 60″ 120 120 96 800 189 16,000 10 20.00 250 1/4 0.18 No
SWR06ED-120-120-120
193 224 183 60″ 120 120 120 1,000 225 20,000 15 20.00 250 1/4 0.18 No
SWR06ED-120-144-96
191 243 159 60″ 120 144 96 960 207 18,000 15 18.75 250 1/4 0.18 No
SWR06ED-120-144-120
197 218 183 60″ 120 144 120 1,200 234 24,000 15 20.00 250 1/4 0.18 No
SWR06ED-120-168-96
193 242 159 60″ 120 168 96 1,120 225 22,000 15 19.64 250 1/4 0.18 No
SWR06ED-120-168-120
203 242 183 60″ 120 168 120 1,400 288 26,000 15 18.57 750 1 0.37 No

Note: Sizes are approximate. LEWCO, Inc. reserves the right to change specifications without notice.

Standard oven construction includes a 16 gauge aluminized steel interior with a 18 gauge cold rolled steel exterior. Heat loss is minimized by a unique wall design featuring a welded inner shell and a completely isolated outer frame and covers.

Doors

Heavy-duty doors on an isolated door frame minimize heat loss. Wire core gaskets create a tight seal for efficient heating. Standard doors are bi-parting swing at one end and include explosion venting latches.

     Standard Options:

  • Bi-parting swing doors at both ends
  • Vertical lift guillotine door at one or both ends
  • Door windows

Flooring

Standard ovens operating at or above 650°F include an insulated base (100 p.s.f. max)

     Standard Options:

  • Insulated with (1) pair inverted angle track
  • Insulated with (1) pair 6” wide wheel guides

LEWCO industrial ovens are designed and manufactured to industry standards. Our engineers regularly work to keep updated with the latest revisions in industry codes. If there is a specific industry standard or code compliance that you require for your process heating application, please contact one of our highly knowledgeable applications engineers to learn how LEWCO can help!

About NFPA 86

The National Fire Protection Association’s standard, NFPA 86, documents the guidelines for the safe operation of industrial ovens and furnaces. All LEWCO ovens are designed and manufactured to meet the requirements of this standard. Oven and furnaces in which flammable volatiles or combustible materials are present in the work space are classified by NFPA 86 as “Class A.” Similarly, ovens and furnaces in which no flammable volatiles or combustible materials are present are classified as “Class B.” Due to the risk of fire or explosion, NFPA 86 requires specific safety equipment for all Class A ovens and furnaces. Fuel gas-fired ovens and furnaces also require safety equipment.

  • Powered exhaust of capacity determined by maximum solvent loading.
  • Explosion relief of adequate area determined by oven or furnace workspace volume.

Industry Standards